JP estimation model
Japan is broken down into 10 zones. Electricity production data is reported by each specific TSO for each zone.
The data reported by each TSO and therefore fetched by Electricity Maps is incomplete. For most of the zones, real-time solar power production is reported in real time, whereas the remaining production modes are reported aggregated and labelled as "unknown". Additionally, 3 zones (Kyūshū JP-KY, Kansai JP-KN and Shikoku JP-SK) have operational nuclear power plants and report their production in real-time.
This current approach prevents Electricity Maps from providing accurate values for production and therefore carbon intensity.
With the objective to provide granular data for all Japanese zones, we introduce the Mode Breakdown Estimation model.
With this estimation method is it possible to allocate the unknown power production to each specific mode. This can be done by using the available historical consolidated data reported by each TSO.
This model affects wind, geothermal, biomass, coal, hydro gas and oil. For an overview of how the model generates a complete production breakdown, see the figures below.
Figure 1: Breakdown of remaining production when real-time information accounts for solar and unknown
Figure 2: Breakdown of remaining production when real-time information accounts for solar, nuclear and unknown
